Lower-fat or fat-free products can be higher in sodium than their full-fat counterparts: An ounce of full-fat sharp cheddar cheese has less sodium than one ounce of fat-free cheddar.

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Also considered a hard grating cheese, though less expensive, it competes with Parmigiano-Reggiano (though mainly on a price basis).

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Explaining the rise of Barcelona as a naval power to rival Italian city-states like Pisa and Genoa, he notes the balanced diet of Catalan sailors: more biscuit and cheese than the Venetians, less wine than the Neapolitans, but plenty of garlic, onions and spices to make hard biscuits more palatable.

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The assignments he and his hard-working staff face include fetching cheese pizzas for dogs, which is probably less of a challenge than it may sound, since the Madison Square Garden area is loaded with pizza joints.

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Some less-healthy fats such as butter, sour cream, mayonnaise, and cheese are OK, but try to stick with mainly healthy fats such as nuts, peanut butter, olives, olive or canola oil, or avocado.

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While you can't bring liquids through security checkpoints, you can pack cheese, fruit, sandwiches and even salad if your dressing is in a container of 3.4 ounces or less and fits in your toiletry-liquids baggie.

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